Data is provided for the four county region: King, Kitsap, Pierce and Snohomish. Estimates are provided by Standard Industrial Classification (SIC) codes and North American Industrial Classification System (NAICS) codes. Starting with the 2003 data set, SIC based data will no longer be reported. Estimates are presented at a major industrial category level.

For SIC, industrial categories are: Construction/Resources (Const/Res); Finance, Insurance, Real Estate and Services (FIRES); Manufacturing; Retail; Wholesale Trade, Transportation, Communication and Utilities (WTCU); Government; and Education. SIC codes included in these categories are:

Const/Res: 01-02, 07-10, 12-17
FIRES: 60-65, 67, 70, 72-73, 75-76, 78-89
Manufacturing: 20-39
Retail: 52-59
WTCU: 40-42, 44-51

For NAICS, industrial categories are: Construction/Resources (Const/Res); Finance, Insurance and Real Estate (FIRE); Manufacturing; Retail; Services; Wholesale Trade, Transportation, and Utilities (WTU); Government; and Education. NAICS codes included in these categories are:

Const/Res: 11, 21, 23
FIRE: 52, 53
Manufacturing: 31-33
Retail: 44, 45
Services: 51, 54-56, 61, 62, 71, 72, 81
WTU: 22, 42, 48, 49

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